Method for device-to-device communication, terminal for device-to-device communication and base station

Abstract

The present invention provides a method for device-to-device communication, a terminal for device-to-device communication and a base station. The method for the device-to-device D2D communication includes: receiving, by a terminal, uplink scheduling signaling transmitted by a base station with in a n th subframe, wherein the uplink scheduling signaling is used for scheduling D2D transmission within a (n+m) th subframe, and n and m are positive integers; implementing, by the terminal, the D2D transmission with in the (n+m) th subframe according to the uplink scheduling signaling. The D2D method, D2D terminal and the base station of the embodiments of the present invention may adopt different transmission modes of D2D control signaling under a condition that different frame structures are determined.

What is claimed is: 
     
         1 . A method for device-to-device D2D communication, comprising:
 receiving uplink scheduling signaling transmitted by a base station within a n th  downlink subframe, wherein the uplink scheduling signaling is used for scheduling D2D transmission within a (n+m) th  uplink subframe, and n and m are positive integers; and   implementing the D2D transmission within the (n+m) th  uplink subframe according to the uplink scheduling signaling.   
     
     
         2 . The method according to  claim 1 , further comprising:
 receiving configuration signaling transmitted by the base station within the n th  downlink subframe, wherein the configuration signaling is used for indicating configuration of a D2D transceiving state within the (n+m) th  uplink subframe.   
     
     
         3 . The method according to  claim 2 , wherein the implementing the D2D transmission within the (n+m) th  uplink subframe according to the uplink scheduling signaling comprises:
 implementing a D2D receiving procedure within the (n+m) th  uplink subframe according to the uplink scheduling signaling, if the (n+m) th  uplink subframe is determined as a D2D receiving subframe according to the configuration signaling;   implementing a D2D transmitting procedure within the (n+m) th  uplink subframe according to the uplink scheduling signaling, if the (n+m) th  uplink subframe is determined as a D2D transmitting subframe according to the configuration signaling.   
     
     
         4 . The method according to  claim 1 , wherein the implementing the D2D transmission within the (n+m) th  uplink subframe according to the uplink scheduling signaling comprises:
 implementing the D2D transmission within the (n+m) th  uplink subframe according to the number of the received uplink scheduling signaling; or   implementing the D2D transmission within the (n+m) th  uplink subframe according to information carried in the uplink scheduling signaling.   
     
     
         5 . The method according to  claim 4 , wherein the implementing the D2D transmission within the (n+m) th  uplink subframe according to the number of the received uplink scheduling signaling comprises:
 implementing a D2D transmitting procedure within the (n+m) th  uplink subframe according to a first number of the uplink scheduling signaling received;   implementing a D2D receiving procedure within the (n+m) th  uplink subframe according to a second number of the uplink scheduling signaling received.   
     
     
         6 . The method according to  claim 4 , wherein the information comprises bit information for cell index field or bit information for hopping flag. 
     
     
         7 . A method for device-to-device D2D communication, comprising:
 transmitting, by a base station, uplink scheduling signaling to a terminal within a n th  subframe, wherein the uplink scheduling signaling is used for scheduling the terminal to implement D2D uplink transmission within a (n+m) th  uplink subframe, and n and m are positive integers.   
     
     
         8 . The method according to  claim 7 , further comprising:
 transmitting, by the base station, configuration signaling to the terminal within the n th  subframe, wherein the configuration signaling indicates configuration of a D2D transceiving state within the (n+m) th  uplink subframe of the terminal.   
     
     
         9 . The method according to  claim 8 , wherein the configuration signaling further indicates that the (n+m) th  uplink subframe of the terminal is a D2D receiving subframe or a D2D transmitting subframe, so that the terminal implements D2D uplink receiving or uplink transmitting within the (n+m) th  uplink subframe after the uplink scheduling signaling is received. 
     
     
         10 . The method according to  claim 7 , wherein the transmitting, by a base station, uplink scheduling signaling to a terminal within a n th  subframe comprises: transmitting, by the base station, the uplink scheduling of different numbers or the uplink scheduling signaling carrying different information to the terminal, so that the terminal implements D2D uplink receiving or uplink transmitting within the (n+m) th  uplink subframe according to the different numbers of the uplink scheduling signaling transmitted or the different information carried in the uplink scheduling signaling. 
     
     
         11 . A terminal of device-to-device D2D communication, comprising:
 a receiver have one or more processors coupled with a memory that is configured to receive uplink scheduling signaling transmitted by a base station within a n th  downlink subframe, wherein the uplink scheduling signaling is used for scheduling D2D transmission within a (n+m) th  uplink subframe, and n and m are positive integers; and   a transmitter have one or more processors coupled with a memory that is configured to implement the D2D transmission within the (n+m) th  uplink subframe according to the uplink scheduling signaling.   
     
     
         12 . The D2D terminal according to  claim 11 , wherein:
 the receiver is further configured to receive configuration signaling transmitted by the base station within the n th  downlink subframe, wherein the configuration signaling is used for indicating configuration of a D2D transceiving state within the (n+m) th  uplink subframe.   
     
     
         13 . The D2D terminal according to  claim 12 , wherein when the transmitter is configured to implement the D2D transmission within the (n+m) th  uplink subframe according to the uplink scheduling signaling, the transmitter is further configured to:
 implement a D2D receiving procedure within the (n+m) th  uplink subframe according to the uplink scheduling signaling under a condition that the (n+m) th  uplink subframe is determined as a D2D receiving subframe according to the configuration signaling; and   implement a D2D transmitting procedure within the (n+m) th  uplink subframe according to the uplink scheduling signaling under a condition that the (n+m) th  uplink subframe is determined as a D2D transmitting subframe according to the configuration signaling.   
     
     
         14 . The D2D terminal according to  claim 13 , wherein the transmitter is configured to:
 implement a D2D transmitting procedure within the (n+m) th  uplink subframe according to a first number of the uplink scheduling signaling received by the receiver; and   implement a D2D receiving procedure within the (n+m) th  uplink subframe according to a second number of the uplink scheduling signaling received by the receiver.   
     
     
         15 . The D2D terminal according to  claim 13 , wherein the transmitter is configured to:
 implement a D2D receiving procedure within the (n+m) th  uplink subframe if the information carried in the uplink scheduling signaling received by the receiver indicates receiving; and   implement a D2D transmitting procedure within the (n+m) th  uplink subframe if the information carried in the uplink scheduling signaling received by the receiver indicates transmitting.   
     
     
         16 . The D2D terminal according to  claim 13 , wherein the information carried in the uplink scheduling signaling received by the receiver comprises bit information for cell index field or bit information for hopping flag. 
     
     
         17 . A base station, comprising:
 a processor, configured to generate a request message for device-to-device D2D communication; and   a transmitter have one or more processors coupled with a memory that is configured to transmit uplink scheduling signaling to a terminal within a n th  subframe according to the request message, wherein the uplink scheduling signaling is used for scheduling the terminal to implement D2D uplink transmission within a (n+m) th  uplink subframe, and n and m are positive integers.   
     
     
         18 . The base station according to  claim 17 , wherein:
 the transmitter is further configured to transmit configuration signaling to the terminal within the n th  subframe, wherein the configuration signaling indicates configuration of a D2D transceiving state within the (n+m) th  uplink subframe of the terminal.   
     
     
         19 . The base station according to  claim 18 , wherein the configuration signaling further indicates that the (n+m) th  uplink subframe of the terminal is a D2D receiving subframe or a D2D transmitting subframe, so that the terminal implements D2D uplink receiving or uplink transmitting within the (n+m) th  uplink subframe after the uplink scheduling signaling is received. 
     
     
         20 . The base station according to  claim 17 , wherein the transmitter is further configured to transmit the uplink scheduling of different numbers or the uplink scheduling signaling carrying different information to the terminal, so that the terminal implements D2D uplink receiving or uplink transmitting within the (n+m) th  uplink subframe according to the different numbers of the uplink scheduling signaling transmitted or the different information carried in the uplink scheduling signaling.